Cylinder Head Disassembly - Polaris RZR PRO R Service Manual

ENGINE / COOLING SYSTEM
7. Using a dial bore gauge, measure big end I.D. in two
directions shown. Record measurements and
compare to specifications.
8. Refer to the number stamped onto the exhaust side
of the connecting rod. This number represents the
bore diameter.
9. The table below lists the big end bore diameter
specifications.
BEARING SELECTION CHART — ROD BEARINGS
CONNECTING ROD BIG END BORE
DIAMETERS
1 2
1.8892 - 1.8895 -
1.8895" - 1.8898"
(47.987 - (47.995 -
47.994 mm) 48.001 mm)
10. Whether using new connecting rods or re-installing
the original ones, refer to the bearing selection chart
provided in the Connecting Rod Bearing Selection
page 3.73 procedure in this chapter.
3.60

CYLINDER HEAD DISASSEMBLY

1. Remove the coolant vent fitting
together and identified in order for proper re-installation
2. Using the PV-1253 compressor, compress the valve
spring.
3
1.8898 -
1.8900"
(48.002 -
48.008 mm)
3. Remove the valve keys
4. Slowly release the PV-1253 compressor from the
valve spring assembly.
5. Remove the retainers
IMPORTANT
Ensure that the valve train components are kept
in their original position.
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9940259 R02 - 2022 RZR PRO R / PRO R 4 Service Manual
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